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VP-32xl - Kramer Electronics

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KRAMER ELECTRONICS, Ltd.
USER MANUAL
VGA/XGA Switchers
Models:
VP-31, VP-32xl, VP-61RS
IMPORTANT: Before proceeding, please read paragraph entitled
"Unpacking and Contents"
Table Of Contents
Section
Name
1
1.1
1.2
1.3
2
3
4
4.1
5
5.1
5.2
5.3
6
6.1
7
8
9
9.1
9.2
9.3
9.4
9.4.1
9.4.2
9.4.3
9.5
10
10.1
10.1.1
10.1.2
10.1.3
11
12
12.1
12.2
12.3
12.4
13
13.1
INTRODUCTION
A Word on VGA/XGA/Audio Switchers
Handling Graphics signals
Factors Affecting Quality of Results
SPECIFICATIONS
HOW DO I GET STARTED?
UNPACKING AND CONTENTS
Optional Accessories
VGA/XGA/AUDIO SWITCHERS
Getting To Know Your VP-31 Switcher
Getting To Know Your VP-32xl Switcher
Getting To Know Your VP-61RS Switcher
INSTALLATION
Rack Mounting
CONNECTING TO VGA/XGA DEVICES
CONNECTING TO AUDIO DEVICES
USING THE SWITCHERS
Powering On the Switcher
Selecting an Input on the Switchers
Controlling the VP-32xl
Controlling the VP-61RS
The VS-2000 System
DIP Switches
The "Reply" Option
VGA/XGA Switching
CONNECTING TO A PC (VP-61RS only)
PC Control Software
Installation
Software Controls
Using the PC Control Software
TAKING CARE OF YOUR SWITCHER
TROUBLESHOOTING
Power And Indicators
Audio Signal (VP-32xl only)
Video Signal
Control (VP-61RS only)
PROTOCOL USED FOR THE VP-61RS COMMUNICATION
Detailed Description
List Of Illustrations
Figure
1
2
3
4
5
6
7
8
9
VP-31 Front/Rear Panel Features
VP-32xl Front/Rear Panel Features
VP-61RS Front/Rear Panel Features
VP-32xl Remote Connector Location and Pinout
Typical VS-2000 System Setup
Typical VGA/XGA Switching
RS-232 Control Connector Wiring
Connecting Multi-Machines
VP-32xl Fuse Location
1
1
2
3
3
4
4
4
6
6
7
8
9
9
9
10
10
10
10
10
11
11
12
13
13
14
15
15
15
16
17
18
18
19
19
20
21
21
Page
6
7
8
10
11
13
13
13
18
List Of Tables
Table
1
2
3
4
Page
VP-31 Front/Rear Panel Features
VP-32xl Front/Rear Panel Features
VP-61RS Front/Rear Panel Features
DIP Switch Settings
6
7
8
12
INTRODUCTION
Congratulations on your purchase of this Kramer switcher. Since 1981 Kramer has been dedicated to the
development and manufacture of high quality video/audio equipment. The Kramer line has become an integral
part of many of the best production and presentation facilities around the world. In recent years, Kramer has
redesigned and upgraded most of the line, making the best even better. Kramer’s line of professional
video/audio electronics is one of the most versatile and complete available, and is a true leader in terms of
quality, workmanship, price/performance ratio and innovation. In addition to the Kramer line of high quality
switcher, such as the one you have just purchased, Kramer also offers a full line of high quality distribution
amplifiers, processors, interfaces, controllers and computer-related products.
This manual includes configuration, operation and option information for the following products from the
Kramer VP line of switchers. All these VP switchers are similar in operation and features.
VP-31 - 3x1 VGA/XGA Switcher
VP-32xl - 3x1 VGA/XGA/Audio Stereo Switcher
VP-61RS - 6x1 VGA/XGA Switcher
A Word on VGA/XGA/Audio Switchers
VGA/XGA/Audio Switchers route signals to one or more selected users. They vary in the number of inputs,
looping capability, programming capability, number of outputs, operating format, bandwidth and input/output
coupling. VGA/XGA/Audio Switchers are used to select which source is to be switched to which acceptor for
recording or monitoring, with no discernible signal degradation. A good quality VGA/XGA/Audio Switcher
amplifies the incoming signal, pre-compensates the signal for potential losses (resulting from the use of long
cables, noisy source, etc.) and routes the signal(s) to buffered and amplified outputs. Often, a signal processor
is inserted between the source and the VGA/XGA/Audio switcher for correction and fine tuning of the source
signal before routing. The front panels of these Kramer switchers are designed to be simple to operate. Some
of the switchers are RS232 controlled for remote PC operation. The machines described in this manual switch
one of several PC'
s to a monitor. The machines excel in high source isolation for minimal crosstalk and very
large bandwidth.
Handling Graphics signals
A computer generated graphics signal is usually comprised of 5 signals: Red, Green, Blue -which are analog
level signals and two TTL (logic) level signals - Horizontal Sync and Vertical Sync signals. (Digital graphics
cards and monitors use a different signal format, and will not be discussed here as they are not relevant to the
DA.). Computer graphics resolution is measured in pixels and signal bandwidth.
The more pixels (picture elements) on the screen, the more the image is detailed. VGA, S-VGA, XGA, S-XGA
and U-XGA are terms describing the graphics resolution and the color depth. Color depth represents the
maximum number of simultaneously displayed colors on the screen and is measured in bits. 24 and 32-36 bits
of color depth represent millions to billions of color shades available on the screen at any given moment. It
should be born in mind though that the human eye can resolve only a few thousands colors! The more the
image is detailed (higher resolution) and higher the color depth the more real the image will look. The
standard VGA highest resolution was 640x480 pixels with 4 bits of color (16 colors). The VGA standard was
able to use more colors (256) but at a lower resolution- around 320x200 pixels, which was very crude.
Common resolutions used nowadays for computer graphics vary between 1024x768 up to 2000x1600 pixels
with “high color” - 16 bits of color, representing 64,000 different colors, up to “true color” - 24 bits or more,
representing from 16.7 million colors up to several billion. Displaying such a detailed and colorful image on
the screen needs enormous graphics memory per frame, as well as very high speeds for “writing” so many
pixels on the screen in real time. The amplifiers that carry those signals should be able to handle those speeds
and hence signal bandwidth. The standard VGA at 640x480 resolution needed amplifiers with 20-30MHz
bandwidth.
At 1600x1200 or even at 1280x1024 (S-XGA), those amplifiers will completely fail. In order to faithfully
amplify and transmit modern high-resolution graphics, amplifiers with bandwidths of 300 MHz and more are
needed. Those amplifiers, besides the enormous bandwidth they should handle, need to be linear, to have very
low distortion and be stable. Stability of an amplifier is its ability to avoid bursting into uncontrolled
oscillation, which is in adverse relationship to the speed it can handle. The tendency to oscillate is further
enhanced by the load impedance. The load impedance of a system is usually not just a resistor. A cable
connected to an amplifier (leading to the receiver or monitor) may present a capacitive and/or an inductive
load to the amplifier. This is the main cause for instability. The non-ideal behavior of a load or cable may
severely degrade the performance of the amplifier - it’s bandwidth, linearity, and stability - and in general it’s
ability to faithfully reproduce the signal.
The cables affect image resolution. Longer cables, due to non-ideal characteristics, cause high frequency
deterioration and hence image “smear” and loss of resolution. In computer graphics especially, this adverse
effect is very much accentuated. The amplifiers should cope then with an additional task - compensating for
cable losses up to the maximum useful operation distance. High-resolution graphics systems must use very
high quality cables for image transmission. The cables should be shielded - to eliminate externally induced
interference but the shield might increase the capacitance of the cable, and therefore, cause deterioration in the
image’s resolution and clarity. The standard cables can only be a few meters long. For longer distances, the
compound cable is broken into five individual coax cables, which are bulky and cumbersome for use. Even so,
the distance is limited to several tens of meters.
The non-ideal behavior of a cable may create other problems resulting from the failure to accurately match the
system’s required impedance. The result of this, especially at high frequencies, is “shadows” or “ghosts” on
the image, resulting from standing waves and electronic reflections running back and forth between transmitter
and receiver. Another aspect to consider is the sync. As those signals are logic signals, which are not treated as
analog signals, the receiver does not terminate the line, and therefore the line is not matched. A host of
problems might occur when the signals are sent over long, unterminated, unmatched cables. The result might
be image breakdown or distortion due to improper sync information. The amplifier that drives the analog
section of the graphics data should also be able to buffer, recover and send the sync information in such a way
that it would be received properly at the receiver end.
Factors Affecting Quality of Results
There are many factors affecting the quality of results when signals are transmitted from a source to an
acceptor:
Connection cables - Low quality cables are susceptible to interference, they degrade signal quality due
to poor matching and cause elevated noise levels. They should therefore be of the best quality.
Sockets and connectors of the sources and acceptors - So often ignored, they should be of highest
quality, since "Zero Ohm" connection resistance is the target. Sockets and connectors must also match
the required impedance (75ohm in video). Cheap, low quality connectors tend to rust, thus causing
breaks in the signal path.
Amplifying circuitry - Must have quality performance when the desired end result is high linearity,
low distortion and low noise operation.
Distance between sources and acceptors - Plays a major role in the final result. For long distances of
over 15 meters (~2 to 3meters for VGA/XGA) between sources and acceptors, special measures should
be taken in order to avoid cable losses. These include using higher quality cables or adding line
amplifiers.
Interference from neighboring electrical appliances - These can have an adverse effect on signal
quality. Balanced audio lines are less prone to interference, but unbalanced audio should be installed far
from any mains power cables, electric motors, transmitters, etc. even when the cables are shielded.
SPECIFICATIONS
Configuration
Input Type
VP-31
VP-32xl
VP-61RS
3:1
3 VGA/XGA
3:1 x 2
3 VGA/XGA,
3 stereo audio, line level
Video: HD 15F connectors
Audio: RCA connectors
0.7Vpp/75ohm,
H&V syncs, TTL level Audio:
5Vpp/50K
2x1 VGA/XGA
2x1 stereo audio, line level
Video: HD 15F connectors
Audio: RCA connectors
0.7Vpp/75ohm,
H&V syncs, TTL level Audio:
5Vpp/50K
3 electronic illuminated touch
switches with electronic
interlock. Terminal block
connector for remote control
6:1
6 VGA/XGA
Input
Connections
HD 15F connectors
Input Level
0.7Vpp/75ohm,
H&V syncs, TTL level
Output Type
1 VGA/XGA
Output
Connector
Output Level
HD 15F connector
0.7Vpp/75ohm,
H&V syncs, TTL level
HD15F connectors
0.7Vpp/75ohm,
H&V syncs, TTL level
1 VGA/XGA
HD15F connector
0.7Vpp/75ohm,
H&V syncs, TTL level
Controls
3 electronic illuminated touch
switches with electronic
interlock.
Output
Coupling
Max. Video
Level
Direct transmission by relay
Direct transmission by relay
6 electronic illuminated touch
switches with electronic
interlock. RS-232 via an
additional DB-9 connector on
the back panel.
Direct transmission by relay
Up to 5V on 75ohm/0.25W
load (relay)
Exceeding 450MHz
Up to 5V on 75ohm/0.25W
load (relay)
Exceeding 300MHz
Up to 5V on 75ohm/0.25W
load (relay)
180MHz
0.05%
0.1%
0.04%
0.02Deg.
0.06Deg.
0.02Deg.
<0.05%
<0.05%
73dB
<0.05%
0.1%
75dB
<0.05%
<0.1%
72.7dB
NA
100KHz
NA
NA
95dB
NA
NA
NA
<0.018%
>5Vpp
NA
NA
<5mS
24.5 x 18 x 4.5 (cm)
9.6" x 7" x 1.8"
1.4kg. (3.1lbs.) Approx.
5.1VA
<5mS
22 x 18 x 4.5 (cm)
8.7" x 7" x 1.8"
1.1kg. (2.4lbs.) Approx.
1.8VA
<5mS
48.3 x 17. 8 x 9 (cm)
19" x 7" x 1U
2.7kg. (6lbs.) Approx.
6.2VA
230VAC, 50/60 Hz (115VAC,
U.S.A.)
12VDC, 150mA
230VAC, 50/60 Hz (115VAC,
U.S.A.)
Video
Bandwidth
Differential
Gain
Differential
Phase
K-Factor
Non Linearity
Video S/N
Ratio
Audio
Bandwidth
Audio S/N
Ratio
Audio THD
Max. Audio
Level
Switch Time
Dimensions
(W, D, H)
Weight
Power
Consumption
Power Source
HOW DO I GET STARTED?
The fastest way to get started is to take your time and do everything right the first time. Taking 15 minutes to
read the manual may save you a few hours later. You don’t even have to read the whole manual. So if the
section doesn’t apply to you, you don’t have to spend your time reading it.
UNPACKING AND CONTENTS
The items contained in your Kramer switcher package are listed below. Please save the original box and
packaging materials for possible future transportation and shipment of the switcher.
Switcher
AC power cable (where applicable)
User Manual
KRAMER K-Switch Software for Windows 95 (VP-61RS only)
KRAMER Null Modem Adapter Connector (VP-61RS only)
Kramer concise product catalog
4 rubber feet
Optional Accessories
The following accessories which are available from Kramer, can enhance implementation of your switcher.
For information regarding cables and additional accessories, contact your Kramer dealer.
Rack Adapter - Used to install smaller size machines in a standard 1U rack. One or more machines may
be installed on each adapter.
VP-200 - (1:2 High Resolution VGA Distribution Amplifier) can be serially inserted between the switcher
and the acceptors. It is a full bandwidth distributor designed for computer and workstations applications.
The VP-200 splits a VGA/Super-VGA/XGA graphics card output to 2 monitors, with no discernible signal
degradation. State-of-the-art video amplifying circuitry and microchip technology make the KRAMER VP200 the first choice Graphics Component Distributor. Signal bandwidth of 345MHz allows the VP-200 to be
used with the highest quality graphics workstations.
VP-300 - (1:3 High Resolution VGA Distribution Amplifier) can be serially inserted between the switcher
and the acceptors. It is a full bandwidth distributor designed for computer and workstations applications.
The VP-300 splits a VGA/Super-VGA/XGA graphics card output to 3 monitors, with no discernible signal
degradation. State-of-the-art video amplifying circuitry and microchip technology make the KRAMER VP300 the first choice Graphics Component Distributor. Signal bandwidth of 345MHz allows the VP-300 to be
used with the highest quality graphics workstations.
VP-400 - (1:4 High Resolution VGA Distribution Amplifier) can be serially inserted between the switcher
and the acceptors. It is a full bandwidth distributor designed for computer and workstations applications.
The VP-400 splits a VGA/Super-VGA/XGA graphics card output to 4 monitors, with no discernible signal
degradation. State-of-the-art video amplifying circuitry and microchip technology make the KRAMER VP400 the first choice Graphics Component Distributor. Signal bandwidth of 345MHz allows the VP-400 to be
used with the highest quality graphics workstations.
VP-211 - (2x1 Automatic VGA/Audio Switcher) can be serially inserted between the VGA/audio switcher
and the acceptors for VGA/audio distribution. It is a full bandwidth switcher designed for computer and
presentation applications. The VP-211 automatically detects the presence of a VGA/XGA signal on input
no. 1 and routes it to the output. If the signal disappears, the machine switches to input no. 2 and routes it to
the output. When the signal on input no. 1 re-appears, the VP-211 reroutes input no. 1 to the output. The
machine operates in audio-follow-video (VGA) mode and switches the stereo audio input appropriate to the
VGA input. Signal bandwidth of 517MHz ensures that the VP-211 remains transparent even in the most
critical applications. The VP-211 is part of the Kramer TOOLS family of compact, high quality and cost
effective solutions for a variety of applications.
VP-22 - (VGA / XGA Line Amplifier & Processor) can be serially inserted between the VGA switcher
and the acceptors for signal processing. It is a full bandwidth machine designed for computer and
workstation applications where remote monitoring is needed. The VP-22 splits a VGA/Super VGA/XGA
graphics card output to 2 remote monitors and allows the user to control signal level and cable equalization
for each channel independently. The machine also allows control of horizontal and vertical sync delay on the
BNC coaxial outputs. On its H/HV SYNC output BNC, the VP-22 allows either horizontal or composite
sync while on its green output BNC, it allows either green or green + composite sync. State-of-the-art video
amplifying circuitry makes the KRAMER VP-22 the perfect graphics component amplifier. Signal
bandwidth of over 350MHz allows it to be used with the highest quality graphics workstations.
VP-101 - (VGA to RGBS Converter) can be serially inserted between the VGA switcher and the acceptors
for VGA to RGB conversion. It is a full bandwidth machine designed for computer, workstation and
presentation applications. The VP-101 converts a VGA/Super-VGA/XGA graphics card output to red, green,
blue, horizontal/composite sync and vertical sync. The signals are available on BNC connectors. Via a rear
panel switch, the VP-101 allows the user to select either a composite or horizontal sync output. The
composite sync generated maintains the correct polarity (negative), at any polarity of Hs and Vs inputs. The
input and outputs are AC coupled conforming to the highest standards. The original source bandwidth is
retained to well over 300MHz thus allowing the VP-101 to be used with the highest quality graphics
workstations.
VP-102 - (VGA to RGBS Converter) can be serially inserted between the VGA switcher and the acceptors
for VGA to RGB conversion. It is a full bandwidth machine especially designed for computer, workstation
and presentation applications. The VP-102 converts a VGA/Super - VGA/XGA graphics card output to red,
green, blue, horizontal/composite sync and vertical sync signals available on BNC connectors. The VP-102
allows the user to select either a composite or horizontal sync output and the green output either includes
composite sync or is blanked. The composite sync generated by the machine is always at the correct polarity
(negative), for any polarity of Hs and Vs inputs. As the signal bandwidth is well over 315MHz, the VP-102
may be used with the highest quality graphics workstations.
VGA/XGA/AUDIO SWITCHERS
This section describes all the controls and connections of your switcher. Understanding them helps you realize
the full power of your switcher.
Getting to Know Your VP-31 Switcher
The KRAMER VP-31 is a full bandwidth, 3x1 VGA/XGA Switcher designed for computer and workstation
applications. The VP-31 switches one of three VGA/Super-VGA/XGA graphics card outputs to one monitor or
vice versa, with no discernible signal degradation. Input and output are directly coupled and conform to the
highest standards. Signal bandwidth of over 450MHz allows the VP-31 to be used with the highest resolution
graphics workstations. Front/Rear panel features of the VP-31 are described in Figure 1 and Table 1.
NOTE
For operation instructions refer to section 9.
Figure 1: VP-31 Front/Rear Panel Features
Table 1: VP-31 Front/Rear Panel Features
No.
Feature
Function
1.
2.
Illuminated power switch
INPUT SELECTOR switches (A, B, C)
Supplies power to the unit.
Select the desired input to be switched to the output.
3.
4.
5.
INPUT (A-C) HD 15F Connectors
OUTPUT HD 15F Connector
Power connector
VGA/XGA video input
Video output.
A 3-prong AC connector allows power to be supplied to
the unit. Directly underneath this connector, a fuse
holder houses the appropriate fuse.
Getting to Know Your VP-32xl Switcher
The KRAMER VP-32xl is a full bandwidth, 3x1 VGA/Audio Stereo Switcher designed for computer,
workstation and presentation applications. The VP-32xl switches one of three sets of VGA/Super-VGA/XGA
graphics/Audio stereo sources into up to two monitors or wide screen projectors, with no discernible signal
degradation. Output of the VP-32xl is divided into two, thus it functions as a VGA/Audio DA as well. The
VP-32xl uses a 12Volt DC power source and is therefore perfectly suitable for fieldwork. VGA bandwidth of
300 MHz allows the VP-32xl to be used with the highest resolution graphics workstations.
Front/Rear panel features of the VP-32xl are described in Figure 2 and Table 2.
NOTE
For operation instructions refer to section 9.
Figure 2: VP-32xl Front/Rear Panel Features
Table 2: VP-32xl Front/Rear Panel Features
No.
Feature
Function
1.
2.
Illuminated power switch
INPUT SELECTOR switches (A, B, C)
Supplies power to the unit.
Select the desired input to be switched to the output.
3.
4.
5.
6.
7.
8.
R, L RCA connectors (1-3)
R, L RCA connectors (1-2)
Terminal block REMOTE connector
INPUT (1-3) HD 15F Connectors
OUTPUT HD 15F Connector
12VDC Power Connector
Audio input.
Amplified and buffered audio outputs.
Used for manual remote control
VGA/XGA video input
Amplified and buffered video output.
A DC connector that allows power to be supplied to
the unit.
Getting to Know Your VP-61RS Switcher
The KRAMER VP-61RS is a full bandwidth, 6x1 VGA/XGA Switcher designed for computer and
workstation applications. The VP-61RS switches one of six VGA/Super-VGA/XGA graphics card outputs to
one monitor or vice versa, with no discernible signal degradation. The VP-61RS also has RS-232 control.
Input and output are directly coupled and conform to the highest standards. Signal bandwidth of over 180MHz
allows the VP-61RS to be used with the highest resolution graphics workstations.
Front/Rear panel features of the VP-61RS are described in Figure 3 and Table 3.
NOTE
For operation instructions refer to section 9.
Figure 3: VP-61RS Front/Rear Panel Features
Table 3: VP-61RS Front/Rear Panel Features
No.
Feature
Function
1.
2.
Illuminated power switch
INPUT SELECTOR switches (A-F)
Supplies power to the unit.
Select the desired input to be switched to the output.
3.
4.
5.
6.
INPUT A-F HD 15F connectors
OUTPUT HD 15F Connector
RS-232 HD 15F Connector (DB-9 female
connector)
PROGRAM Dip Switches
7.
Power connector
6 VGA/Super XGA inputs.
VGA/Super-XGA output.
Used for control of the switcher from a PC through an
RS-232 interface.
Allow proper configuration of the control signals received
and transmitted through the RS-232 control port,
master/slave configurations, and device ID numbers.
A 3-prong AC connector allows power to be supplied to
the unit. Directly underneath this connector, a fuse holder
houses the appropriate fuse.
INSTALLATION
Rack Mounting
The VP-61RS switcher included in this manual may be rackmounted in a standard 19” (1U) EIA rack
assembly, and includes rack “ears” at the ends of the front. The VP-31 and the VP-32xl can be installed in a
rack, using a special rack adapter (contact your KRAMER dealer). These machines do not require any specific
spacing above or below the unit for ventilation. To mount any of the switchers, simply place the rack ears
against the rails of your rack, and insert standard screws through each of the four corner holes in the rack ears.
CONNECTING TO VGA/XGA DEVICES
Video sources and output devices (such as monitors, projectors or recorders) may be connected to the
switchers through the HD 15F connectors located on the back of the unit. Unused inputs are terminated to
75ohm, and active inputs should be terminated by the connecting source. Please keep in mind that the output
signal format will match that of the input signal format. (Example: If VGA is input, then VGA is output).
CONNECTING TO AUDIO DEVICES
Audio sources and output devices may be connected to the switchers (VP-32xl only) through the RCA type
connectors located on the back of the unit.
USING THE SWITCHERS
Powering on the Switcher
NOTES
Switcher should only be powered on, after all connections are
completed, and all source devices have been powered on. Do
not attempt to connect or disconnect any video, audio or
control signals to the switcher while it is powered on!
The socket-outlet should be near the equipment and should be
easily accessible. To fully disconnect equipment, remove power
cord from its socket after it has been turned off.
1)
2)
Press the toggle switch on the far-left front panel to the up position. In the up position, the toggle switch
glows and the active input button illuminates, as well.
Operate the acceptors.
Selecting an Input on the Switchers
Input selection on the switchers described in this manual is simply made by pressing buttons marked “1”, “2”
etc. (or "A", "B", "C" etc.) on the front panel, or by operating via your preferred remote device (see section
9.3). These buttons correspond to the input connections as marked on the back panel.
Controlling the VP-32xl
The VP-32xl switcher can be controlled by the following methods:
1)
2)
By touch buttons on the front panel (see section 9.2 "Selecting an Input on the Switchers").
By direct remote contact closure via the terminal block connector (e.g. a switch panel that the customer
rigs up).
To remote control the VP-32xl, wire the Remote connector as shown in Figure 4. Grounding one of the inputs
1-3 selects the active input to be switched to both outputs "1" & "2".
Figure 4: VP-32xl Remote Connector Location and Pinout
Controlling the VP-61RS
The VP-61RS switcher can be controlled by the following methods:
1) By touch buttons on the front panel (see section 9.2 "Selecting an Input on the Switchers").
2) By any RS-232 controller such as a PC or the VS-2000 (for more information, refer to Section 9.4.1: The
VS-2000 System") which is programmed according to the protocol of the switcher (see Section 13:
“Protocol Used for VP-61RS Communication").
The VS-2000 System
9.4.1
The KRAMER VS-2000 is a Programmable Remote Control Unit, designed for use in video production and
duplication studios and in live broadcasting and editing configurations. It provides access to and control of up
to six groups of KRAMER switchers from a single point. A group can comprise several interconnected
switchers which, in turn, permit access to various pieces of equipment (monitors, mixers, editors, VCRs, etc).
The VS-2000 can be controlled by pressing its front panel touch buttons, and via a PC using the RS-232
control port. KRAMER PC control software is provided with the VS-2000. Since new switcher types are
constantly being added and older types upgraded, KRAMER provides a small door marked "EPROM" on the
VS-2000 rear panel for easy replacement of the existing chip with an updated chip. This contains the
appropriate information for the new and modified switchers. KRAMER makes updated chips available
periodically. The VS-2000 stores and recalls preferred configurations for convenience in studio control. A
typical VS-2000 system setup using the VP-61RS is shown in Figure 5. To connect and operate the VS-2000
System perform the following steps (for more details about the VS-2000 refer to the instruction manual
provided with the VS-2000).
1)
2)
3)
4)
5)
Connect up to six switchers via RS-232 ports on each machine to the connectors on the rear panel of the
VS-2000 marked "Port 1" to "Port 6" using straight DB9 to DB9 male to male flat cable.
Connect a PC equipped with a serial port to the socket marked "TO PC" on the rear panel of the VS-2000,
using a null modem connection (the null modem adapter provided with the machine). Use a straight DB9
to DB9 connector if you are using the null modem adapter, or connect as in Figure 7.
Connect a 12VDC power supply to the 12VDC socket on the rear panel of the VS-2000. Use a DC wall
transformer with a positive center pin.
Turn on all the machines and the VS-2000.
To install the software provided with the distribution diskette for PC control, copy the contents of the
diskette into a sub directory on your hard disk and read the BC-2000.HLP file. You can print it for later
reference. The file name BC20PROT.HLP is the communication protocol for advanced users.
Figure 5: Typical VS-2000 System Setup
9.4.2 DIP Switches
The VP-61RS selects one of 6 VGA/Super-VGA/XGA standard signals. As said before there are two options
for operating the switcher, both are available without removing the switcher cover.
It can be operated by touching one of the front panel switches.
It can be operated by a remote PC via the RS-232 connectors on its rear panel.
The DIP switch (see Table 4) on the rear panel is used when the switcher is operated via the RS-232 connector
or when it is interconnected with other switchers. These switches allow proper configuration of the control
signals received/transmitted through the RS-232 control port. The VP-61RS allows master/slave
configurations so that the switchers may operate independently, or in conjunction with each other.
Table 4: DIP Switch Settings
PROGRAM
ADDRESS
Machine #
1
2
3
4
5
6
7
8
1 (Master)
2 (Slave)
3 (Slave)
4 (Slave)
5 (Slave)
6 (Slave)
7 (Slave)
8 (Slave)
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Legend:
Switches 1, 2, 3:
Switch 4:
Switch 5:
Switches 6, 7, 8:
RS232
Reply
Baud Rate (Off=1200, On=9600 Baud)
ADDRESS
9.4.3 The "Reply" Option
When the PC addresses the Master/Slave machines, a "Reply" signal is sent back to the PC indicating that the
instruction was received by the addressed machine. When several machines are connected in parallel ( all with
the same machine number), it is disallowed for all of them to transmit at the same time thus, only the Master
machine replies (switch 4 is enabled).
NOTE
The Slave "Reply" settings are all ON or all OFF,
depending on the requirements of the system. The
Master "Reply" setting is always ON.
VGA/XGA Switching
Computer based graphics is used in video production, in presentation applications, for education purposes and
more. It is frequently necessary to switch PC graphics from several sources to one or more acceptors. Figure 6
describes a typical VGA/XGA switching (VP-61RS) where six different input sources are switched to one
acceptor.
Perform the following steps:
1)
2)
3)
4)
5)
Connect all component sources to the appropriate inputs of the switcher.
Connect XGA/VGA acceptor/s to the output/s of the switcher.
Connect PC or controlling unit.
Operate the switcher, sources and acceptors.
Select the required input to be switched, using front panel input selector pushbuttons.
Some useful tips:
Always keep distances between sources and acceptors as short as possible.
Keep all cable lengths identical, as final quality may be severely degraded if cables carrying different
components are of unequal lengths.
Use best quality cables for interconnection. Component video signals carry high frequency information
which deteriorates rapidly when using low quality cables.
Figure 6: Typical VGA/XGA Switching
CONNECTING TO A PC (VP-61RS only)
To connect directly to a PC without using the KRAMER Null-Modem Adapter, make connections as in Figure
7. To use the KRAMER Adapter instead (recommended), plug one end into the PC'
s serial port, then connect
from the other end to the switcher using a 9-pin flat-cable. When multi-machines are to be connected together,
make the connections as in Figure 8, or extend pins "5" and "9" only.
Figure 7: RS-232 Control Connector Wiring
Figure 8: Connecting Multi-Machines
PC Control Software
10.1.1 Installation
To install the Control Software perform the following steps:
1) Insert the program diskette #1 into the floppy drive of your PC.
2) From within Windows95В®, or higher run the Setup.exe file on the first diskette and follow the instructions.
The K-switch software and icon are automatically installed in a specific destination folder on the hard
disk.
3) Once the installation is completed, the K-Switch program may be run.
10.1.2 Software Controls
The software controls function as described below:
Machine Number (where applicable)
The number of the machine in a group of chained switchers, where each machine can be addressed
individually using this option. Note that machine number "1" is always the Master.
Input Selector buttons
When clicked, selects the input which will be connected to the output. The input button default color is
yellow and it turns red when connected (clicked).
Save button
When clicked, saves the current configuration of all the chained switchers: To save configuration: click on
Save and finally click on the desired Setup Window Number. Note that after clicking Save, the selected
button blinks in red when occupied and in green when free. The saved setup can be recalled by clicking the
Recall button.
NOTE
Cancelling Save/Recall functions and deactivating Setup
Window Number can be done by clicking Save/Recall
buttons again or by clicking the right button of the mouse.
Recall button
When clicked recalls and displays on the screen a saved configuration of all the chained switchers. To
recall a configuration, click on the Recall button and then select the desired Setup Window Number.
Switcher button
When clicked, allows you to select a different switcher model.
Port button
Defines the active serial port (COM1-COM4) to which the switcher/matrix is connected. To select a port,
click on the Port button. When the Port screen appears, select the desired port and click Ok. Switching a
number from 1-4 followed by clicking the Save button, changes the active port number.
Restart button
Displays the current configuration of the connected switcher on the screen.
Help button
When clicked, a Kramer Switchers Help screen appears allowing you to view either the Communication
protocol (by clicking the Communication protocol button), or the current software version (by clicking
About). Click Ok after the selection is complete.
Exit button
When clicked, allows you to exit the program. You are prompted to confirm that you want to exit.
Input Description Labels
Used by the operator to name a selected input. The input name is saved when the Save button is clicked.
Setup Description Labels
Used by the operator to name each setup. The setup names correspond to the Setup window numbers and
are stored when the Save button is clicked.
10.1.3 Using the PC Control Software
Included with your switcher are diskettes with software drivers for the following products as shown on the
Switcher screen:
After installing the program perform the following steps (The VP-61RS is an example in this case):
1) Connect your switcher or matrix to an identified serial port of the PC.
2) Turn on the switcher/matrix.
3) Open the folder where the program was installed (the default folder is named K-Switch) and double click
on the K-switch icon. You may create a shortcut to the program and locate it in a convenient location.
4) When the program is launched for the first time, the Port screen appears together with the Switcher
screen. Select the active serial port (COM1-COM4) to which the switcher/matrix is connected and then
click Ok. The Port screen disappears and the Switcher screen remains.
5)
Select the desired switcher model and then click the Select button to confirm your selection.
NOTE
If the program was launched before, the Main Menu
appears immediately with the previously saved
configuration!
6)
The Main Menu (with the switcher model number on top) appears.
7)
8)
If properly connected and with the right COM port selected, you can identify your switcher and view an
image representing its control panel on the PC monitor (with the current configuration).
If the COM or switcher are not properly selected, "Communication Error" message appears.
9)
To exit the program, click the "Exit" button. You are prompted for confirmation.
NOTE
When clicking "Exit", the program automatically
stores the active port number and your switcher ID.
When the program is run again, this port and
switcher ID automatically appear.
TAKING CARE OF YOUR SWITCHER
Do not locate your switcher in an environment where it is susceptible to dust or moisture. Both of these may
damage the electronics, and cause erratic operation or failure. Do not locate your switcher where temperature
and humidity may be excessive. Doing so may also damage the electronics, and cause erratic operation or
failure of your switcher. Do not clean your switcher with abrasives or strong cleaners. Doing so may remove
or damage the finish, or may allow moisture to build up. Take care not to allow dust or particles to build up
inside unused or open connectors.
TROUBLESHOOTING
NOTES
1. Please note that if the output signal is disturbed or
interrupted by very strong external electromagnetic
interference, it should return and stabilize when such
interference ends. If not, turn the power switch off and then
on again to reset the machine.
2. If the recommended actions still do not result in satisfactory
operation, please consult your KRAMER Dealer.
Power and Indicators
Problem
Remedy
No Power
1.
2.
1.
2.
1.
2.
3.
4.
5.
Confirm that rocker switch is in “ON” position, and LED is illuminated.
Confirm that power connections are secured at the switcher and at the
receptacle. Make sure the receptacle is active, outputting the appropriate
voltage.
For the VP-31 and the VP-61RS models perform the following:
If still there is no power, remove power cord from AC outlet and then using
a flat head screwdriver, remove the fuse holder located directly below the
power connector on your switcher.
Confirm that the fuse is good by looking for the wire connected between the
ends of the fuse. If the wire is broken, replace fuse the with another, with the
same rating.
For the VP-32xl perform the following:
Using a Philips screwdriver, remove 4 side screws attaching the machine'
s
cover.
Remove 2 screws and 3 brackets tightening the audio board to the video
board and remove board.
Locate the fuse holder located inside your switcher (see Figure 9). Confirm
that the fuse is good by looking for the wire connected between the ends of
the fuse. If this wire is broken, replace the fuse with another, with the same
rating.
Tighten 2 screws and 3 brackets of the audio board.
Install the machine'
s cover by tightening its Philips screws.
Figure 9: VP-32xl Fuse Location
Audio Signal (VP-32xl only)
Problem
Remedy
No audio at the output
device, regardless of
input selected
1.
2.
Audio level is too low
1.
2.
Confirm that your sources and output device are powered on and connected
properly. Audio signals connected to the input of your switcher should be
properly wired to the output of your source. Audio signals connected to the
output of your switcher should be properly wired to the input of your line
amplifier or recorder.
Confirm that any other amplifiers in the signal path have the proper input
and/or output selected. Pay special attention to input amplifiers that may be
built into your acceptor.
Confirm that the connecting cables are of high quality and properly built.
Check level controls located on your source input device or output display or
recorder.
Video Signal
Problem
Remedy
No video at the output
device, regardless of
input selected.
1.
2.
Video level is too high
or too dim.
1.
2.
Confirm that your sources and output device are powered on and connected
properly. Video signals at the input of your switcher should be of an identical
signal format at the output of your source. Video signals at the output of your
switcher should be of an identical signal format as at the input of your display
or recorder.
Confirm that any other switchers in the signal path have the proper input and/or
output selected.
Verify that the video line is well matched through 75ohm impedance.
Confirm that the connecting cables are of high quality, properly built and
terminated with 75ohm BNC connectors. Check level controls located on your
source input device or output display or recorder.
Problem
Remedy
Noise bars are "rolling"
up or down in the
output video image
Hum bars (ground loop) are caused by a difference in the ground potential of any
two or more devices connected to your signal path. This difference is compensated
by passing that voltage difference through any available interconnection, including
your video cables.
or:
WARNING!
Low Frequency Hum in
the output audio signal
DO NOT DISCONNECT THE GROUND FROM ANY
PIECE OF VIDEO/AUDIO EQUIPMENT IN YOUR
SIGNAL PATH!
Check the following to remove hum bars:
1.
Confirm that all interconnected equipment is connected to the same phase of
power, if possible.
2.
Remove equipment connected to that phase that may introduce noise, such as
motors, generators, etc.
3.
Disconnect all interconnect cables and reconnect them one at a time until
ground loop reappears. Disconnect the affected cable and replace, or insert an
isolation transformer in the signal path.
Control (VP-61RS only)
Problem
Remedy
No control of switcher
from VS-2000 control
panel
1.
2.
3.
4.
5.
No control of switcher
from the PC software
1.
2.
3.
4.
5.
6.
Confirm that the connecting cable is wired for pins 1-9 straight through.
Confirm that all DIP switches on the switcher have been set properly. Keep in
mind that if you are controlling only one switcher on a specific port, that
switcher must be assigned the ID of “1”.
If controlling more than one switcher on a single port, all switchers must be of
the same type and power to all switchers must be on.
Confirm that you have the proper machine number and control port selected on
the VS-2000. For instance, if you are controlling a single machine on port 1,
then both of these should be set to “1”.
Confirm that you have the proper switcher type selected on the VS-2000. If
not, go back to Section 9.4.1 of this manual “The VS-2000 System”.
Confirm the wiring of the connecting cable. This pin configuration may be
found in Section 10 “CONNECTING TO A PC”. Cable length should not
exceed 25 feet.
Confirm that all DIP switches on the switcher have been set properly. Keep in
mind that if you are only controlling one switcher on a specific port, that
switcher must be assigned the ID of “1”.
If controlling more than one switcher on a single port, all switchers must be of
the same type and power to all switchers must be on.
Confirm that the baud rate of your computer COM port is set to the same as
that of your switcher (e.g 9600-Baud). Confirm that the proper COM port is
selected in the control software.
With custom software, do not send multiple commands at the same time. Wait
for the switcher to reply to a command before sending the next command.
Confirm that the computer you are using supports true RS-232C protocol.
Computers such as the Apple Macintosh do not!
PROTOCOL USED FOR THE VP-61RS COMMUNICATION
The protocol used for communication between the PC and the VP-61RS is defined below. The rate of data is
9600 baud with no parity, 8 data bits and one stop bit. To work at 1200 baud, DIP switch number 5 should be
set to "OFF".
N7
MSB
N6
N5
N4
N3
N2
N1
N0
LSB
Detailed Description
N7
Used for communication between the Slave and the Master only and is
always "0" for communication with the PC
is the binary value of the machine we are addressing minus one, e.g., if
we wish to address the Master (machine 1 by definition), then N6N5N4
= 000, if we wish to address machine 6, then
N6N5N4 = 101.
is the binary value of the input to be selected, i.e. N3N2N1N0 = 0110
is equivalent to pressing switch No. 6 of the machine.
N6N5N4
N3N2N1N0
Several special codes are also valid:
N3N2N1N0
1101 requests that the Machine being addressed sends its present status
to the PC, i.e. which input is selected on its front panel.
1110 is an "OK" handshake, i.e. confirmation that the instruction was
received by the addressed Machine. (If the addressed machine is not
present, then this confirmation is not sent to the PC).
N3N2N1N0
Information sent from the Master to the PC is done using the same format:
0
N7
Machine number-1
N6N5N4
New switch status
N3N2N1N0
LIMITED WARRANTY
Kramer Electronics (hereafter Kramer) warrants this product to be free from defects in material and
workmanship under the following terms.
HOW LONG IS THE WARRANTY
Labor and parts are warranted for three years from the date of the first customer purchase.
WHO IS PROTECTED
Only the first purchase customer may enforce this warranty.
WHAT IS COVERED AND WHAT IS NOT COVERED
Except as below, this warranty covers all defects in material or workmanship in this product. The following are
not covered by the warranty:
1)
2)
3)
Any product which is not distributed by Kramer or which is not purchased from an authorized Kramer
dealer. If you are uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents
listed in the web site www.kramerelectronics.com.
Any product, on which the serial number has been defaced, modified or removed.
Damage, deterioration or malfunction resulting from:
a) Accident, misuse, abuse, neglect, fire, water, lightning or other acts of nature.
b) Product modification, or failure to follow instructions supplied with the product.
c)
Repair or attempted repair by anyone not authorized by Kramer.
d) Any shipment of the product (claims must be presented to the carrier).
e)
Removal or installation of the product.
f)
Any other cause, which does not relate to a product defect.
g) Cartons, equipment enclosures, cables or accessories used in conjunction with the product.
WHAT WE WILL PAY FOR AND WHAT WE WILL NOT PAY FOR
We will pay labor and material expenses for covered items. We will not pay for the following:
1)
2)
3)
Removal or installations charges.
Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These
costs are the responsibility of the Kramer dealer from whom the product was purchased.
Shipping charges.
HOW YOU CAN GET WARRANTY SERVICE
1)
2)
3)
To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.
Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of
warranty coverage, and should be included in any shipment of the product. Please also include in any
mailing a contact name, company, address, and a description of the problem(s).
For the name of the nearest Kramer authorized service center, consult your authorized dealer.
LIMITATION OF IMPLIED WARRANTIES
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited
in duration to the length of this warranty.
EXCLUSION OF DAMAGES
Kramer’s liability for any defective products is limited to the repair or replacement of the product at our option.
Kramer shall not be liable for:
1)
2)
Damage to other property caused by defects in this product, damages based upon inconvenience, loss of use
of the product, loss of time, commercial loss; or
Any other damages, whether incidental, consequential or otherwise. Some countries may not allow
limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitations and exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary from place to
place.
NOTE: All products returned to Kramer for service must have prior approval. This may be obtained from your
dealer.
NOTICE
This equipment has been tested to determine compliance with the requirements of:
EN-50081:
EN-50082:
CFR-47
"Electromagnetic compatibility (EMC);
generic emission standard.
Part 1: Residential, commercial and light industry"
"Electromagnetic compatibility (EMC) generic immunity standard. Part 1:
Residential, commercial and light industry environment".
FCC Rules and Regulations:
Part 15- “Radio frequency devices:
Subpart B- Unintentional radiators
CAUTION
Any user who makes changes or modifications to the unit without the express approval of the manufacturer
will void user authority to operate the equipment.
Use the supplied AC power cord to supply power to the switcher and controllers.
Please use recommended interconnect cables to connect the switcher to controllers and other components.
For the latest information on our products and a list of
Kramer distributors, visit our Web site:
www.kramerelectronics.com.
Updates to this user manual may be found at
http://www.kramerelectronics.com/manuals.html.
We welcome your questions, comments and feedback.
Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
P/N: 2900-005003 REV 2
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